EN ISO 15245-2:2001

Gas cylinders - Parallel threads for connection of valves to gas cylinders - Part 2: Gauge inspection (ISO 15245-2:2001)

This International Standard specifies types, dimensions and principles of use of gauges to be used in conjunction with the sealing systems of the parallel threads specified in Part 1. The threads themselves are gauged using GO and NOT GO gauges as described in ISO 1502.

Ortsbewegliche Gasflaschen - Zylindrische Gewinde für den Anschluss von Ventilen an Gasflaschen - Teil 2: Prüflehren (ISO 15245-2:2001)

Dieser Teil von ISO 15245 legt Typen, Maße und Anwendungsgrundsätze von Lehren für zylindrische Gewinde, die in Verbindung mit dem zylindrischen Gewinde nach ISO 15245-1 angewendet werden, fest.
Die Gewinde werden durch Gut- und Ausschusslehren überprüft, wie in ISO 1502 angegeben.

Bouteilles à gaz - Filetages parallèles pour le raccordement des robinets sur les bouteilles à gaz - Partie 2: Contrôle par calibre (ISO 15245-2:2001)

La présente partie de l'ISO 15245 spécifie les types, les dimensions et les principes d'utilisation des calibres qui sont à utiliser avec les systèmes d'étanchéité des filetages parallèles spécifiés dans l'ISO 15245-1.  Les filetages eux-mêmes sont calibrés à l'aide de calibres ENTRE et N'ENTRE PAS comme décrit dans l'ISO 1502.

Plinske jeklenke - Cilindrični navoji za priključitev ventilov na jeklenke - 2. del: Kontrola s kalibrom (ISO 15245-2:2001)

General Information

• Status: Published
• Publication Date: 14-Oct-2001
• ICS: 23.020.30 - Pressure vessels, gas cylinders
• ICS: 23.020.35 - Gas cylinders
• Technical Committee: CEN/TC 23 - Transportable gas cylinders
• Drafting Committee: CEN/TC 23/WG 20 - Cylinder design - Fittings
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 01-May-2006
• Completion Date: 01-May-2006
• Ref Project: SIST EN ISO 15245-2:2002 - Gas cylinders - Parallel threads for connection of valves to gas cylinders - Part 2: Gauge inspection (ISO 15245-2:2001)

Relations

• Parent: EN ISO 15245-1:2001 - Gas cylinders - Parallel threads for connection of valves to gas cylinders - Part 1: Specification (ISO 15245-1:2001)
• Effective Date: 22-Dec-2008

Overview

EN ISO 15245-2:2001 is an international standard developed by CEN that focuses on the gauge inspection of parallel threads used for the connection of valves to gas cylinders. This standard complements Part 1 (Specification) by providing detailed guidelines on the types, dimensions, and correct use of inspection gauges to ensure the proper sealing and safety of gas cylinder valve connections. The standard applies to parallel threading systems specified in ISO 15245-1 and incorporates established gauging principles according to ISO 1502.

Key Topics

• Gauge Types and Dimensions: The standard specifies the design, dimensions, and tolerances of inspection gauges including GO and NOT GO plain plug gauges for various thread sizes (M18 x 1.5, M25 x 2, and M30 x 2).
• Inspection Procedures: Detailed instructions on using plug gauges to check the depth, diameter, and thread relief of the sealing recess are provided. Acceptance criteria are defined by the ability of the GO gauge to fit correctly and the NOT GO gauge to be rejected if the component dimensions fall outside the allowed tolerance.
• Material and Construction: Gauges must be manufactured from materials that offer suitable hardness, stability, and strength for reliable and repeatable inspections.
• Verification and Maintenance: Regular verification of inspection gauges using optical or suitable measuring equipment is necessary to prevent errors due to wear or damage over time.
• Identification and Traceability: Gauges must carry clear identification marks, including the ISO 15245 standard number, thread size indication, and gauge number for traceability and standard compliance.

Applications

EN ISO 15245-2:2001 is essential for industries and manufacturers involved in the production, inspection, and maintenance of transportable gas cylinders with parallel threaded valve connections. By adhering to this standard, users can ensure:

• Safety: Reliable valve connections prevent gas leaks and ensure operational safety of gas cylinders across applications such as industrial gases, medical oxygen, and specialty gas distribution.
• Quality Control: The use of standardized inspection gauges facilitates consistent quality monitoring and acceptance or rejection of threaded components during manufacturing.
• Regulatory Compliance: Compliance with this standard supports meeting relevant safety directives and technical regulations in various jurisdictions across Europe and internationally.
• Interoperability: Standardized gauge dimensions allow for the interchangeability of gas cylinders and valves from different manufacturers, promoting global trade and equipment compatibility.

Related Standards

• ISO 15245-1:2001 – Gas cylinders - Parallel threads for connection of valves to gas cylinders - Part 1: Specification. This part covers the technical specifications for the parallel threading system.
• ISO 1502 – General-purpose metric screw threads - Gauges and gauging, describing GO and NOT GO gauge principles.
• ISO 68-1 – Metric screw threads - Basic profile - Part 1: Metric screw threads, which describes the thread profile and geometrical characteristics referenced in EN ISO 15245-2.
• ISO 724 – General-purpose metric screw threads - Basic dimensions, providing pitch and thread size specifications used in the standard.

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By implementing EN ISO 15245-2:2001, stakeholders involved with gas cylinders can maintain rigorous inspection protocols to assure the functionality and safety of parallel threaded valve connections, supporting effective quality control and compliance in the gas cylinder industry.

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2002
3OLQVNHMHNOHQNH&LOLQGULþQLQDYRML]DSULNOMXþLWHYYHQWLORYQDMHNOHQNHGHO
.RQWURODVNDOLEURP,62
Gas cylinders - Parallel threads for connection of valves to gas cylinders - Part 2: Gauge
inspection (ISO 15245-2:2001)
Ortsbewegliche Gasflaschen - Zylindrische Gewinde für den Anschluss von Ventilen an
Gasflaschen - Teil 2: Prüflehren (ISO 15245-2:2001)
Bouteilles a gaz - Filetages paralleles pour le raccordement des robinets sur les
bouteilles a gaz - Partie 2: Contrôle par calibre (ISO 15245-2:2001)
Ta slovenski standard je istoveten z: EN ISO 15245-2:2001
ICS:
21.040.30 Posebni navoji Special screw threads
23.020.30 7ODþQHSRVRGHSOLQVNH Pressure vessels, gas
MHNOHQNH cylinders
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 15245-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2001
ICS 23.020.30
English version
Gas cylinders - Parallel threads for connection of valves to gas
cylinders - Part 2: Gauge inspection (ISO 15245-2:2001)
Bouteilles à gaz - Filetages parallèles pour le raccordement Ortsbewegliche Gasflaschen - Zylindrische Gewinde für
des robinets sur les bouteilles à gaz - Partie 2: Contrôle par den Anschluss von Ventilen an Gasflaschen - Teil 2:
calibre (ISO 15245-2:2001) Prüflehren (ISO 15245-2:2001)
This European Standard was approved by CEN on 10 October 2001.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2001 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 15245-2:2001 E
worldwide for CEN national Members.

CORRECTED 2002-01-02
Foreword
The text of the International Standard from Technical Committee ISO/TC 58 "Gas cylinders"
has been taken over as a European Standard by Technical Committee CEN/TC 23
"Transportable gas cylinders", the secretariat of which is held by BSI.
This European Standard shall be given the status of a national standard, either by publication
of an identical text or by endorsement, at the latest by April 2002, and conflicting national
standards shall be withdrawn at the latest by April 2002.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium,
Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,
Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United
Kingdom.
Endorsement notice
The text of the International Standard ISO 15245-2:2001 has been approved by CEN as a
European Standard without any modifications.
NOTE Normative references to International Standards are listed in annex ZA (normative).
EN ISO 15245-1:2001 (E)
Annex ZA
(normative)
Normative references to international publications with their corresponding
European publications
This European Standard incorporates, by dated or undated reference, provisions from other
publications. These normativereferences are cited at the appropriate places in the text, and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions
of any of these publications apply to this European Standard only when incorporated in it by
amendment or revision. For undated references the latest edition of the publication referred to
applies (including amendments).
NOTE Where an International Publication has been modified by common modifications, indicated by
(mod.), the relevant EN/HD applies.
Publication Year Title EN/HD Year
ISO 15245-1 2001 Gas cylinders - Parallel threads for connection EN ISO 15245-1 2001
of valves to gas cylinders - Part 1:
Specification
INTERNATIONAL ISO
STANDARD 15245-2
First edition
2001-10-15
Gas cylinders — Parallel threads for
connection of valves to gas cylinders —
Part 2:
Gauge inspection
Bouteilles à gaz — Filetages parallèles pour le raccordement des robinets
sur les bouteilles à gaz —
Partie 2: Contrôle par calibre
Reference number
ISO 15245-2:2001(E)
©
ISO 2001
ISO 15245-2:2001(E)
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ISO 15245-2:2001(E)
Contents Page
Foreword.iv
1 Scope .1
2 Normative references .1
3 Terms and definitions.1
4 Requirements .2
4.1 Materials.2
4.2 Thread profile .2
4.3 Thread rotation.2
4.4 Pitch .2
5 Gauge dimensions.3
6 Inspection gauges .3
7 Use of inspection gauges .5
7.1 Plain gauges.
...